我按照教程制作了我的第一个 slick2d 游戏，不幸的是，从游戏基础状态转换到菜单状态时出现了问题。 我尝试了很多方法，但没有意识到问题所在
这是主类(GAME)
package javagame;
import org.newdawn.slick.*;
import org.newdawn.slick.state.*;
public class Game extends StateBasedGame {
public static final String gamename = "Ham Blaster";
public static final int menu = 0;
public static final int play = 1;
public Game(String gamename)
{
super(gamename);
this.addState(new Menu(menu));
this.addState(new Play(menu));
this.addState(new Play(play));
this.addState(new Menu(play));
}
public void initsStatesList(GameContainer gc) throws SlickException
{
this.getState(menu).init(gc, this);
this.getState(play).init(gc, this);
this.enterState(menu);
}
public static void main(String[] args) {
// TODO Auto-generated method stub
AppGameContainer appgc;
try {
appgc = new AppGameContainer(new Game(gamename));
appgc.setDisplayMode(640,360,false);
appgc.start();
}
catch(SlickException e)
{
e.printStackTrace();
}
}
public void initStatesList(GameContainer arg0) throws SlickException {
// TODO Auto-generated method stub
}
}
菜单类
package javagame;
import org.lwjgl.input.Mouse;
import org.newdawn.slick.GameContainer;
import org.newdawn.slick.Graphics;
import org.newdawn.slick.Image;
import org.newdawn.slick.Input;
import org.newdawn.slick.SlickException;
import org.newdawn.slick.state.*;
public class Menu extends BasicGameState implements GameState {
private int state;
Image playNow;
Image exitGame;
public Menu(int menu) {
// TODO Auto-generated constructor stub
}
public void init(GameContainer arg0, StateBasedGame arg1)
throws SlickException {
}
public void render(GameContainer arg0, StateBasedGame arg1, Graphics g)
throws SlickException {
// TODO Auto-generated method stub
playNow = new Image("res/playNow.png");
exitGame=new Image("res/exitGame.png");
g.drawString("Welcome to BuckyLand", 100, 50);
g.drawImage(playNow, 100, 100);
g.drawImage(exitGame, 100, 200);
}
public void update(GameContainer gc, StateBasedGame sbg, int arg2)
throws SlickException {
int posX = Mouse.getX();
int posY = Mouse.getY();
if (posX > 100 && posX < 100+playNow.getWidth() && posY > 209 &&posY<260)
{
if (Mouse.isButtonDown(0)) {
sbg.enterState(1);
}
}
if (posX > 100 && posX < 100+playNow.getWidth() && posY > 109 &&posY<160)
{
if (Mouse.isButtonDown(0)) {
System.exit(0);
}
}
}
public void mouseClicked(int arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
public void mouseDragged(int arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
public void mouseMoved(int arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
public void mousePressed(int arg0, int arg1, int arg2) {
// TODO Auto-generated method stub
}
public void mouseReleased(int arg0, int arg1, int arg2) {
// TODO Auto-generated method stub
}
public void mouseWheelMoved(int arg0) {
// TODO Auto-generated method stub
}
public void inputEnded() {
// TODO Auto-generated method stub
}
public void inputStarted() {
// TODO Auto-generated method stub
}
public boolean isAcceptingInput() {
// TODO Auto-generated method stub
return false;
}
public void setInput(Input arg0) {
// TODO Auto-generated method stub
}
public void keyPressed(int arg0, char arg1) {
// TODO Auto-generated method stub
}
public void keyReleased(int arg0, char arg1) {
// TODO Auto-generated method stub
}
public void controllerButtonPressed(int arg0, int arg1) {
// TODO Auto-generated method stub
}
public void controllerButtonReleased(int arg0, int arg1) {
// TODO Auto-generated method stub
}
public void controllerDownPressed(int arg0) {
// TODO Auto-generated method stub
}
public void controllerDownReleased(int arg0) {
// TODO Auto-generated method stub
}
public void controllerLeftPressed(int arg0) {
// TODO Auto-generated method stub
}
public void controllerLeftReleased(int arg0) {
// TODO Auto-generated method stub
}
public void controllerRightPressed(int arg0) {
// TODO Auto-generated method stub
}
public void controllerRightReleased(int arg0) {
// TODO Auto-generated method stub
}
public void controllerUpPressed(int arg0) {
// TODO Auto-generated method stub
}
public void controllerUpReleased(int arg0) {
// TODO Auto-generated method stub
}
public void enter(GameContainer arg0, StateBasedGame arg1)
throws SlickException {
// TODO Auto-generated method stub
}
public int getID() {
// TODO Auto-generated method stub
return 0;
}
public void leave(GameContainer arg0, StateBasedGame arg1)
throws SlickException {
// TODO Auto-generated method stub
}
}
游戏课
package javagame;
import org.newdawn.slick.Animation;
import org.newdawn.slick.GameContainer;
import org.newdawn.slick.Graphics;
import org.newdawn.slick.Image;
import org.newdawn.slick.Input;
import org.newdawn.slick.SlickException;
import org.newdawn.slick.state.*;
public class Play extends BasicGameState {
Animation bucky,movingUp,movingDown,movingLeft,movingRight;
Image worldMap;
boolean quit = false;
int[] duration={200,200};
float buckyPosX = 0;
float buckyPosY = 0;
float shiftX = buckyPosX + 320;
float shiftY = buckyPosY + 160;
public Play(int play) {
// TODO Auto-generated constructor stub
}
public void mouseClicked(int arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
public void mouseDragged(int arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
public void mouseMoved(int arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
public void mousePressed(int arg0, int arg1, int arg2) {
// TODO Auto-generated method stub
}
public void mouseReleased(int arg0, int arg1, int arg2) {
// TODO Auto-generated method stub
}
public void mouseWheelMoved(int arg0) {
// TODO Auto-generated method stub
}
public void inputEnded() {
// TODO Auto-generated method stub
}
public void inputStarted() {
// TODO Auto-generated method stub
}
public boolean isAcceptingInput() {
// TODO Auto-generated method stub
return false;
}
public void setInput(Input arg0) {
// TODO Auto-generated method stub
}
public void keyPressed(int arg0, char arg1) {
// TODO Auto-generated method stub
}
public void keyReleased(int arg0, char arg1) {
// TODO Auto-generated method stub
}
public void controllerButtonPressed(int arg0, int arg1) {
// TODO Auto-generated method stub
}
public void controllerButtonReleased(int arg0, int arg1) {
// TODO Auto-generated method stub
}
public void controllerDownPressed(int arg0) {
// TODO Auto-generated method stub
}
public void controllerDownReleased(int arg0) {
// TODO Auto-generated method stub
}
public void controllerLeftPressed(int arg0) {
// TODO Auto-generated method stub
}
public void controllerLeftReleased(int arg0) {
// TODO Auto-generated method stub
}
public void controllerRightPressed(int arg0) {
// TODO Auto-generated method stub
}
public void controllerRightReleased(int arg0) {
// TODO Auto-generated method stub
}
public void controllerUpPressed(int arg0) {
// TODO Auto-generated method stub
}
public void controllerUpReleased(int arg0) {
// TODO Auto-generated method stub
}
public void enter(GameContainer arg0, StateBasedGame arg1)
throws SlickException {
// TODO Auto-generated method stub
}
public int getID() {
// TODO Auto-generated method stub
return 1;
}
public void init(GameContainer arg0, StateBasedGame sbg)
throws SlickException {
// TODO Auto-generated method stub
worldMap = new Image("res/world.png");
Image[] walkUp = {new Image("/res/buckysBack.png"),new
Image("res/buckysBack.png")};
Image[] walkDown = {new Image("/res/buckysFront.png"),new
Image("res/buckysFront.png")};
Image[] walkLeft = {new Image("/res/buckysLeft.png"),new
Image("res/buckysLeft.png")};
Image[] walkRight = {new Image("/res/buckysRight.png"),new
Image("res/buckysRight.png")};
movingUp = new Animation(walkUp,duration,false);
movingDown = new Animation(walkDown,duration,false);
movingLeft = new Animation(walkLeft,duration,false);
movingRight = new Animation(walkRight,duration,false);
bucky = movingDown;
}
public void leave(GameContainer arg0, StateBasedGame arg1)
throws SlickException {
// TODO Auto-generated method stub
}
public void render(GameContainer arg0, StateBasedGame arg1, Graphics g)
throws SlickException {
// TODO Auto-generated method stub
worldMap.draw(buckyPosX,buckyPosY);
bucky.draw(shiftX, shiftY);
g.drawString("Bucky Xpos = "+buckyPosX+"\nBucky YPos = "+buckyPosY,400,20);
if(quit)
{
g.drawString("Resume(R)\nMenu(M)\nExit(Q)", 150, 200);
if(!quit) g.clear();
}
}
public void update(GameContainer gc, StateBasedGame sbg, int delta)
throws SlickException {
// TODO Auto-generated method stub
Input input = gc.getInput();
if(!quit)
{
if(input.isKeyDown(Input.KEY_UP))
{ bucky = movingUp;
buckyPosY += delta * 0.1f;
if(buckyPosY > 162)
buckyPosY -= delta * 0.1f;
}
if(input.isKeyDown(Input.KEY_DOWN))
{ bucky = movingDown;
buckyPosY -= delta * 0.1f;
if(buckyPosY <- 600)
buckyPosY += delta * 0.1f;
}
if(input.isKeyDown(Input.KEY_LEFT))
{ bucky = movingLeft;
buckyPosX += delta * 0.1f;
if(buckyPosX > 324)
buckyPosX -= delta * 0.1f;
}
if(input.isKeyDown(Input.KEY_RIGHT))
{ bucky = movingRight;
buckyPosX -= delta * 0.1f;
if(buckyPosX < -840)
buckyPosX += delta * 0.1f;
}}
if(input.isKeyDown(Input.KEY_ESCAPE))
quit = true;
if(quit)
{
if(input.isKeyDown(Input.KEY_R))
quit = false;
if(input.isKeyDown(Input.KEY_M))
sbg.enterState(1);
if(input.isKeyDown(Input.KEY_M))
System.exit(0);
}
}
}
非常感谢!!
最佳答案
您正在游戏状态中切换到游戏状态。在 Play 类中，放置 sbg.enterState(0) 而不是 sbg.enterState(1)。
关于java - Slick2d 状态转换错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/23733538/